Title :
A Semi-automatic Solitary Pulmonary Nodule Volume Measurement Algorithm on Low-Dose CT Images
Author :
Zhang, Guodong ; Sun, Donghong ; Zhao, Hong ; Li, Zhezhu
Author_Institution :
Sch. of Comput., Shenyang Inst. of Aeronaut. Eng., Shenyang, China
Abstract :
The computer-assisted methods for measuring and tracking nodule volumes have the potential to improve precision for indicating of malignancy for indeterminate nodules. In this paper, we propose a semi-automatic geometric solitary pulmonary nodule (SPN) volume measurement algorithm for calculating the precise volume of indeterminate SPNs with low-dose CT (LDCT) images. The algorithm divided the SPN volume into three parts: the SPN core, the parenchymal area, and the partial volume area. Then we calculated the volume with a geometry method and corrected the volume for partial volume effects with the partial volume area. The proposed method has been compared with the manual volume measurement of nodules by radiologists using two sets CT images in vivo. The result shows that the method is more objective and can evaluate the indeterminate nodules growth rate effectively using LDCT images.
Keywords :
cancer; computational geometry; computerised tomography; diagnostic radiography; lung; medical image processing; LDCT image; SPN core; computer-assisted method; computerised radiology; indeterminate nodule growth rate evaluation; low-dose CT image; lung cancer; parenchymal area; partial volume area; semiautomatic geometric solitary pulmonary nodule volume measurement algorithm; Cancer detection; Computed tomography; Computer networks; In vivo; Lungs; Optimization methods; Protocols; Software algorithms; Voltage; Volume measurement; geometry method; low-dose CT images; solitary pulmonary nodule; volume measurement;
Conference_Titel :
Computational Sciences and Optimization, 2009. CSO 2009. International Joint Conference on
Conference_Location :
Sanya, Hainan
Print_ISBN :
978-0-7695-3605-7
DOI :
10.1109/CSO.2009.326
